>I meant that you could have a button accepting new or edited record. Most likely, it comes down to the binding again. 'Details' container fields should be 'bound' to custom 'detail' object properties, not to view/CA/cursor fields. This way user never enters to the grid, your code does it and it may include all needed validations.

I think we're talking about different scenarios. You're proposing to have one record editting at the time. Usually I use similar approach but in this particular case I allow multiple records editting at the same form.

I'm thinking that the only reliable way would be to loop through all records which were touched (using GetNextModified function) and check each record.

A bit tedious, but I do not see a way to do it using direct control validations.